(北京市建筑设计研究院 北京 100045)
【提要】 绵阳新体育馆是为举办2005年第十三届世界拳击锦标赛建设的主体育馆。体育馆屋盖结构采用四个立体拱架作为主要受力体系，包括两个单跨165m的中拱和两个三跨165m的边拱，拱架之间采用桁架联系和支承屋面。整个结构支承在拱脚和边拱中间部分，共8个支座。主要介绍了绵阳新体育馆的结构体系、拱架曲线、钢结构的分析和设计以及支座基础等各方面内容。经验可供同类工程参考。
【关键词】 体育馆 屋盖结构 结构布置 基础 稳定
Design of Roof Structure of Mianyang New Gymnasium/Zhou Sun,Zhu Zhongyi, Ding Zhijuan, Zhang Shibi,Wang Xuesheng, Qin Kai(Beijing Institute of Architectural Design, Beijing 100045, China)
Abstract:Mianyang New Gymnasium is the main gymnasium designed to house the 13th World Boxing Championship in 2005. The main supporting structure of the gymnasium consists of four arches, including two pieces of 165m single span arch and two pieces of arch located to both sides with two midspan support point over 165m length, the trusses are used between the arches for roof connection and support purpose. The entire structure is supported at the ends of the arches and at midpoint to the arches to both side, there are eight structural bearing supports in total. This paper mainly introduces the structural system of Mianyang New Gymnasium, the optimization of curvilinear profile of the arches, the analysis of the steel structure, and the foundation of the structural bearing etc. The experience can be referred by similar engineerings.
Keywords:gymnasium; roof structure； structural layout； base; stability